KSR Moto WORX 125

125cc Petrol Class 1

#5042 of 5426 overall #1 of 3 KSR Motos #534 of 734 commuter bikes

64.3%

first-time pass rate

25.5%

failed outright

7,728

median miles at test

1,387

MOT tests, 2005–2025

Pass rate over time

first-time pass rate by test year · 2017–2025

The WORX 125's first-time pass rate has fallen 12.0 points since 2017, 71.2% to 59.2%.

Pass rate by mileage

how the WORX 125's first-time pass rate falls with the odometer · class average 73.4%

A low-mileage WORX 125 passes first time 68.4% of the time; by 20k that's 49.4%.

First-time pass rate by odometer reading at test, 10,000-mile bands for this model. Mileage is the strongest reliability signal. See the full curve.

What fails on a WORX 125

failure defects by component group · advisories excluded

Component group	Defects	% of defects	vs all bikes
structure and attachments	256	25.5	16.6×
lamps and reflectors	254	25.3	8.4×
brakes	156	15.5	1.9×
suspension	105	10.4	8.3×
steering	100	10	13.0×
tyres	48	4.8	5.0×
lighting and signalling	35	3.5	0.3×
drive system	27	2.7	1.9×
audible warning (Horn)	14	1.4	5.5×
Identification of the vehicle	10	1	2.8×

Defects recorded against failed normal tests, 2005–2025, grouped by DVSA inspection section. One test can record multiple defects. "vs all bikes" is how often this model's tests record a defect in the group, as a multiple of the all-bike rate.

How rivals compare

same type, similar capacity, high test volume

On first-time pass rate the WORX 125 beats 0 of its 4 closest rivals (YAMAHA YBR 125, HONDA CG125, HONDA CBF125).

YAMAHA YBR 125 71.0% pass · 125k tests HONDA CG125 72.2% pass · 89.3k tests HONDA CBF125 73.3% pass · 84.4k tests GILERA RUNNER 70.8% pass · 69.9k tests

Rivals share this bike's type and sit within ±30% of its engine capacity, ≥ 5,000 tests. Card colour = better/worse first-time pass rate than the WORX 125.

Pass rate by registration year

how each model-year cohort fares · registration year from first use date

Best year to buy used: 2017 (70.9% pass). Weakest: 2016 (55.2%).

First-time pass rate by the year each bike was first registered (cohorts with ≥ 50 tests). Older cohorts are survivors: the worst examples have already left the road, which tends to lift the earliest years.

KSR Moto WORX 125 FAQ

answers computed from the data above · terms in the glossary

Is the KSR Moto WORX 125 reliable?

The KSR Moto WORX 125 is less reliable than average for its class: 64.3% of its 1,387 MOT tests (2005–2025) passed first time, against a class average of 73.4%. That ranks it #5042 of 5426 models.

What does a WORX 125 fail its MOT on most?

structure and attachments — 25% of all defects recorded against failed WORX 125 tests.

What is the best year of WORX 125 to buy used?

By first-time pass rate, 2017-registered examples do best (70.9%) and 2016 worst (55.2%). Condition and history still trump the year.

How many miles will a WORX 125 last?

The median WORX 125 shows 7,728 miles at test, and examples around 20k miles still pass 49.4% of the time — mileage alone rarely kills one.